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The complex between SOS3 and SOS2 regulatory domain from Arabidopsis thaliana: cloning, expression, purification,
María José Sánchez-Barrena1, Sandra Moreno-Pérez, Iván Angulo
1Grupo de Cristalografía Macromolecular y Biología Estructural, Instituto de Química Física Rocasolano, Consejo Superior de Investigaciones Científicas, Serrano 119, E-28006 Madrid, Spain.
Abstract:
The salt-tolerance genes SOS3 (salt overly sensitive 3) and SOS2 (salt overly sensitive 2) regulatory domain of Arabidopsis thaliana were cloned into a polycistronic plasmid and the protein complex was expressed in Escherichia coli, allowing purification to homogeneity in three chromatographic steps. Crystals were grown using vapour-diffusion techniques. The crystals belonged to space group P2(1)2(1)2(1), with unit-cell parameters a = 44.14, b = 57.39, c = 141.90 A.
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